

package com.hazelcast.internal.serialization.impl.defaultserializers;

import com.hazelcast.internal.serialization.impl.SerializationConstants;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;

import java.io.IOException;
import java.util.Comparator;
import java.util.Set;
import java.util.TreeSet;

/**
 * The {@link TreeSet} serializer
 */
public class TreeSetStreamSerializer<E> extends AbstractCollectionStreamSerializer<Set<E>> {

    @Override
    public int getTypeId() {
        return SerializationConstants.JAVA_DEFAULT_TYPE_TREE_SET;
    }

    @SuppressFBWarnings(value = "BC_BAD_CAST_TO_CONCRETE_COLLECTION", justification = "The map is guaranteed to be of type TreeSet when this method is called.")
    @Override
    public void write(ObjectDataOutput out, Set<E> collection) throws IOException {
        out.writeObject(((TreeSet<E>) collection).comparator());

        super.write(out, collection);
    }

    @Override
    public Set<E> read(ObjectDataInput in) throws IOException {
        Comparator<E> comparator = in.readObject();

        Set<E> collection = new TreeSet<>(comparator);

        int size = in.readInt();

        return deserializeEntries(in, size, collection);
    }
}
